sha1_init(9)

✨ sha1_init(9) — the Kernel API Manual, bestie edition ✨

okay so we're in the Kernel API Manual, page sha1_init(9), and honestly? this one's a little cutie. let's get into it 💅

🌸 NAME 🌸

sha1_init — initializes a SHA-1 context so it's ready for a brand new message 🎀

✨ SYNOPSIS ✨

void sha1_init (struct sha1_ctx *ctx );

🦋 ARGUMENTS 🦋

• ctx — the context you want to initialize. that's it. that's the whole vibe check. 🫶

💖 DESCRIPTION 💖

So like, here's the tea: if you don't actually need incremental computation (y'know, feeding the data in piece by piece), then lowkey just consider sha1 instead. no cap, it's the simpler route. ✨

🌈 CONTEXT 🌈

Any context. literally any. she's flexible like that. 💀

👑 SEE ALSO 👑

okay so there's a whole friend group here, and they all ate:

• Kernel file ./include/crypto/sha1.h struct sha1_ctx(9)
• sha1_update(9)
• sha1_final(9)
• sha1(9)
• struct hmac_sha1_key(9)
• struct hmac_sha1_ctx(9)
• hmac_sha1_preparekey(9)
• hmac_sha1_init(9)
• hmac_sha1_init_usingrawkey(9)
• hmac_sha1_update(9)
• hmac_sha1_final(9)
• hmac_sha1(9)
• hmac_sha1_usingrawkey(9)

that's the whole page, bestie — go forth and init your contexts 💜

mwah 💋 this little number lives in ./include/crypto, dated October 2026, and it's literally sha1_init(9) — iconic, no notes ✨🎀